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Document peculiarities of BOOLEAN_TYPE

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gcc/
	* tree.def (BOOLEAN_TYPE): Add more details.
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Eric Botcazou 2025-04-17 20:46:57 +02:00
parent 4cff0434e8
commit 3dabe6a53e
1 changed files with 5 additions and 1 deletions
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gcc/tree.def
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@ -135,7 +135,11 @@ DEFTREECODE (OFFSET_TYPE, "offset_type", tcc_type, 0)
DEFTREECODE (ENUMERAL_TYPE, "enumeral_type", tcc_type, 0)
/* Boolean type (true or false are the only values). Looks like an
INTEGRAL_TYPE. */
INTEGER_TYPE, but must be dealt with specially because TYPE_PRECISION
may be arbitrary despite the restricted set of valid values (in other
words, boolean types with TYPE_PRECISION > 1 exist in some languages).
Similarly, TYPE_UNSIGNED may be false for components of vector masks,
as well as for boolean types in languages other than C. */
DEFTREECODE (BOOLEAN_TYPE, "boolean_type", tcc_type, 0)
/* Integer types in all languages, including char in C.